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Technique d'optimisation de l'energie SCF en fonction des exposants de slater (1973)

Bouscasse, L. ; Phan-Tan-Luu, R. ; Vincent, E. J. ; [et al.]

New York, NY : Wiley-Blackwell

International Journal of Quantum Chemistry 7 (1973), S. 357-364

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ISSN: 0020-7608

Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: We describe a method to optimize simultaneously Slater orbital exponents. The procedure is based on Newton's method and requires the derivatives of the energy as a function of the exponents. The calculation of these derivatives is described explicitly. The method has been applied to the hydrogen molecule.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/qua.560070217

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Occurrence of an antifungal principle in the root extract of a Bayoud — resistant date palm cultivar (1986)

Assef, G. M. ; Assari, K. ; Vincent, E. J.

Springer

European journal of plant pathology 92 (1986), S. 43-47

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ISSN: 1573-8469

Keywords: biochemical resistance ; Phoenix dactilifera L. ; Fusarium oxysporum f. sp.albedinis

Source: Springer Online Journal Archives 1860-2000

Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Description / Table of Contents: Samenvatting In een hexaanextract van wortels van de dadelpalm, cv. Black Boo Stammi die resistent is tegen de Bayoudziekte, bevonden zich stoffen die de sporekieming en de groei van kiembuizen onderdrukken. Dit gold voor alle drie isolaten vanFusarium oxysporum f. sp.albedinis, die werden getoetst. In extracten van de vatbare cultivar Jihel werden de kieming en de groei niet geremd.

Notes: Abstract An hexane extract from roots of Black Boo Stammi, a cultivar of date palm, resistant toFusarium oxysporum f. sp.albedinis, contained substances which inhibited the spore germination and the growth of the germ tubes of the three isolates of the pathogen that were tested. Extract from roots of Jihel, a susceptible cultivar, lacked these substances.